Valve.



PATENTED APR. 9, 1907.

. R. G. FERGUSON.

VALVE.

LIPLIOATION FILED MAR.12,1906.

arm-M1 0 THE mams PETERS 6m u usnmurmv, a. b

ROBERT GEORGE FERGUSON, OF LAKEWOOD, NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented April 9, 1907.

Application filed March 12, 1906. Serial No. 305,616.

.To 01/ whom it may concern.-

Be it known that I, ROBERT. GEORGE FER- GUSON, a citizen of the UnitedStates, residing at Lakewood, in the county of Ocean and State of NewJersey, have invented certain new and useful Improvements in Valves; andI do declare the following to be a full,clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in valves; and it consists ofcertain novel features of construction, combination, and arrangement ofdevices hereinafter described and claimed.

The object of the invention is to provide a valve for steam and waterfaucets and the like in which there will be no escape or loss of steam,water, or other fluid and in which no packing will be required aroundthe operating-stem of the valve.

The above and other objects, which will appear as the nature of myinvention is better understood, are accomplished by means of theconstruction illustrated in the accompanying drawings, in which---Figure 1 is a vertical sectional view through my im roved valve, hereshown as mounted in a aucet. Fig. 2 is a top plan view of a portion ofthe casing with the guide plug or cap between the valve and its stemremoved, and Fig. 3 is a side elevation of the cap or plug of thevalve-casing which forms a guide for the stem.

Referring to the drawings by numeral, 1 denotes the casing of myimproved valve, which casing may be in the form of a faucet or spigot,as shown, or of any other form and construction having the passagetherethrough for steam, water, or other liquids or fluids. As shown, thecasing 1 has a partition 2 between its inlet 3 and outlet 4, and in saidpartition is an o ening 5, which is surrounded by an annu ar valve-seat6. Also formed within the casing 1 are vertical ribs 7, which guide thevalve proper, 8, toward and from the seat 6. This valve 8 is in the formof a circular disk, having its bottom provided with an annular channelor groove to receive a packing material 9, which engages the seat 6 andeffects a tight joint. This valve disk or plate 8 is adjustably mountedupon the lower screw-threaded end 10 of a valve-stem 11, which isadapted to rotate and slide in a guide plug or cap 12. The latter is oftubular form and has its large lower end externally screw-threaded, asat 13, to engage similar screw-threads formed in the open top 14 of thecasing 1, and in the said lower screw-threaded end of the cap or plug 12is formed a circular recess 15, which receives and guides a stop-collar16, provided upon the valve-stem 11. This stem 11 extends through aconcentric bore or opening 17 in the cap or'plug 12 and has at its upperend a head 18, which is swiveled in an operating sleeve or-handpiece 19.This sleeve 19 has its lower end internally screw-threaded to engage theexternal screw-threads 20, formed u on the reduced upper end of the capor pug 12. The intermediate portion of the atter between thescrew-threads 13 and 20 is formed with an annular stop-flange 21 and apolygonal-shaped portion 22 ,the latter being adapted to receive awrench for applying and removing the cap or plug to and from thevalve-casing. The swiveled connection between the operating sleeve orhandpiece 19 and the circular head 18 of the stem 11 is preferablyeffected by forming in the bore of the said sleeve an annular shoulder23 to engage the under side of the head 18 and providing ascrew-threaded plug 24 in the top of said sleeve to retain the head 18therein. The exterior of the operating-sleeve 19 may be of any form topermit it to be conveniently grasped by the hand and rotated; but asshown it is formed with oppositely-projecting arms 25 for this purpose.

The operation and advantage of the invention will be readily seen. Byrotating the handpiece or sleeve 19 it may be moved up and down upon theupper screw-threaded end of the cap or plug 12 to carry the valvestem 11with it and raise or lower the valve 8 from or to its seat 6 to open orclose the passage through the casing 1. This construction dispenses withthe necessity of a packing around the valve-stem and at the same timeprovides a device which will be entirely fluid-tight, since no steam orwater can escape through its threaded connections. By mounting the valveupon its stem, as shown, it may be readily adjusted to vary theoperation of the device and to compensate for wear of the parts. strong,and durable construction, and may be manufactured at comparatively smallcost.

While I have shown and described the preferred embodiment of myinvention, I desire it understood that I do not limit myself to It is ofsimple,

IIO

the eXact showing set forth, since various changes in the form,proportion, and the minor details of construction may be resorted towithout departing from the principle or sacrificing any of theadvantages of the invention, as defined by the a pended claim.

Having thus describe my invention, what I claim as new, and desire tosecure by Letters Patent, is

A device of the character described comprising a casing having anannular valveseat therein, a cap or plug secured in said casing anddisposed concentrically with said valve-seat, said cap or casing havinga concentric bore, a concentric guide-recess'at its inner end and ascrew-threaded reduced portion at its outer end, an operating-sleeve orhandpiece engaged with said screw-threaded portion, and formed at itsupper end with a screw-threaded opening and an annular shoulder therein,a valve-stem slidable in the bore of said cap or plug and having a headat its outer end to engage said annular shoulder, a screw-plug in theupper end of said sleeve for retaining the head of the valvestemtherein, a sto upon said valve-stem slidable in the gui e-recess in saidcap or plug, and a valve upon the screw-threaded inner end of said stemto coact with said valve-seat, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ROBERT GEORGE FERGUSON.

Witnesses:

H. J. TERWIVLLIGER, W. J. HARRISON.

